x: do not instantiate a new nested list on each cursor move
[st.git] / x.c
diff --git a/x.c b/x.c
index 4155a70..5af6e4d 100644 (file)
--- a/x.c
+++ b/x.c
@@ -29,9 +29,11 @@ typedef struct {
 } Shortcut;
 
 typedef struct {
-       uint b;
-       uint mask;
-       char *s;
+       uint mod;
+       uint button;
+       void (*func)(const Arg *);
+       const Arg arg;
+       uint  release;
 } MouseShortcut;
 
 typedef struct {
@@ -56,6 +58,7 @@ static void selpaste(const Arg *);
 static void zoom(const Arg *);
 static void zoomabs(const Arg *);
 static void zoomreset(const Arg *);
+static void ttysend(const Arg *);
 
 /* config.h for applying patches and the configuration. */
 #include "config.h"
@@ -91,8 +94,12 @@ typedef struct {
        Drawable buf;
        GlyphFontSpec *specbuf; /* font spec buffer used for rendering */
        Atom xembed, wmdeletewin, netwmname, netwmpid;
-       XIM xim;
-       XIC xic;
+       struct {
+               XIM xim;
+               XIC xic;
+               XPoint spot;
+               XVaNestedList spotlist;
+       } ime;
        Draw draw;
        Visual *vis;
        XSetWindowAttributes attrs;
@@ -139,6 +146,9 @@ static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int);
 static void xdrawglyph(Glyph, int, int);
 static void xclear(int, int, int, int);
 static int xgeommasktogravity(int);
+static void ximopen(Display *);
+static void ximinstantiate(Display *, XPointer, XPointer);
+static void ximdestroy(XIM, XPointer, XPointer);
 static void xinit(int, int);
 static void cresize(int, int);
 static void xresize(int, int);
@@ -160,6 +170,7 @@ static void kpress(XEvent *);
 static void cmessage(XEvent *);
 static void resize(XEvent *);
 static void focus(XEvent *);
+static int mouseaction(XEvent *, uint);
 static void brelease(XEvent *);
 static void bpress(XEvent *);
 static void bmotion(XEvent *);
@@ -223,8 +234,9 @@ typedef struct {
 } Fontcache;
 
 /* Fontcache is an array now. A new font will be appended to the array. */
-static Fontcache frc[16];
+static Fontcache *frc = NULL;
 static int frclen = 0;
+static int frccap = 0;
 static char *usedfont = NULL;
 static double usedfontsize = 0;
 static double defaultfontsize = 0;
@@ -308,6 +320,12 @@ zoomreset(const Arg *arg)
        }
 }
 
+void
+ttysend(const Arg *arg)
+{
+       ttywrite(arg->s, strlen(arg->s), 1);
+}
+
 int
 evcol(XEvent *e)
 {
@@ -328,7 +346,7 @@ void
 mousesel(XEvent *e, int done)
 {
        int type, seltype = SEL_REGULAR;
-       uint state = e->xbutton.state & ~(Button1Mask | forceselmod);
+       uint state = e->xbutton.state & ~(Button1Mask | forcemousemod);
 
        for (type = 1; type < LEN(selmasks); ++type) {
                if (match(selmasks[type], state)) {
@@ -404,25 +422,37 @@ mousereport(XEvent *e)
        ttywrite(buf, len, 0);
 }
 
+int
+mouseaction(XEvent *e, uint release)
+{
+       MouseShortcut *ms;
+
+       for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
+               if (ms->release == release &&
+                   ms->button == e->xbutton.button &&
+                   (match(ms->mod, e->xbutton.state) ||  /* exact or forced */
+                    match(ms->mod, e->xbutton.state & ~forcemousemod))) {
+                       ms->func(&(ms->arg));
+                       return 1;
+               }
+       }
+
+       return 0;
+}
+
 void
 bpress(XEvent *e)
 {
        struct timespec now;
-       MouseShortcut *ms;
        int snap;
 
-       if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
+       if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
                mousereport(e);
                return;
        }
 
-       for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
-               if (e->xbutton.button == ms->b
-                               && match(ms->mask, e->xbutton.state)) {
-                       ttywrite(ms->s, strlen(ms->s), 1);
-                       return;
-               }
-       }
+       if (mouseaction(e, 0))
+               return;
 
        if (e->xbutton.button == Button1) {
                /*
@@ -638,21 +668,21 @@ xsetsel(char *str)
 void
 brelease(XEvent *e)
 {
-       if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
+       if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
                mousereport(e);
                return;
        }
 
-       if (e->xbutton.button == Button2)
-               selpaste(NULL);
-       else if (e->xbutton.button == Button1)
+       if (mouseaction(e, 1))
+               return;
+       if (e->xbutton.button == Button1)
                mousesel(e, 1);
 }
 
 void
 bmotion(XEvent *e)
 {
-       if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
+       if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
                mousereport(e);
                return;
        }
@@ -733,12 +763,12 @@ xloadcols(void)
        static int loaded;
        Color *cp;
 
-       dc.collen = MAX(LEN(colorname), 256);
-       dc.col = xmalloc(dc.collen * sizeof(Color));
-
        if (loaded) {
                for (cp = dc.col; cp < &dc.col[dc.collen]; ++cp)
                        XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
+       } else {
+               dc.collen = MAX(LEN(colorname), 256);
+               dc.col = xmalloc(dc.collen * sizeof(Color));
        }
 
        for (i = 0; i < dc.collen; i++)
@@ -759,7 +789,6 @@ xsetcolorname(int x, const char *name)
        if (!BETWEEN(x, 0, dc.collen))
                return 1;
 
-
        if (!xloadcolor(x, name, &ncolor))
                return 1;
 
@@ -996,6 +1025,47 @@ xunloadfonts(void)
        xunloadfont(&dc.ibfont);
 }
 
+void
+ximopen(Display *dpy)
+{
+       XIMCallback destroy = { .client_data = NULL, .callback = ximdestroy };
+
+       if ((xw.ime.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
+               XSetLocaleModifiers("@im=local");
+               if ((xw.ime.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
+                       XSetLocaleModifiers("@im=");
+                       if ((xw.ime.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL)
+                               die("XOpenIM failed. Could not open input device.\n");
+               }
+       }
+       if (XSetIMValues(xw.ime.xim, XNDestroyCallback, &destroy, NULL) != NULL)
+               die("XSetIMValues failed. Could not set input method value.\n");
+       xw.xic = XCreateIC(xw.ime.xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing,
+                          XNClientWindow, xw.win, XNFocusWindow, xw.win, NULL);
+       if (xw.xic == NULL)
+               die("XCreateIC failed. Could not obtain input method.\n");
+
+       xw.ime.spotlist = XVaCreateNestedList(0, XNSpotLocation, &xw.ime.spot,
+                                             NULL);
+}
+
+void
+ximinstantiate(Display *dpy, XPointer client, XPointer call)
+{
+       ximopen(dpy);
+       XUnregisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
+                                       ximinstantiate, NULL);
+}
+
+void
+ximdestroy(XIM xim, XPointer client, XPointer call)
+{
+       xw.ime.xim = NULL;
+       XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
+                                       ximinstantiate, NULL);
+       XFree(xw.ime.spotlist);
+}
+
 void
 xinit(int cols, int rows)
 {
@@ -1033,7 +1103,7 @@ xinit(int cols, int rows)
        xw.attrs.background_pixel = dc.col[defaultbg].pixel;
        xw.attrs.border_pixel = dc.col[defaultbg].pixel;
        xw.attrs.bit_gravity = NorthWestGravity;
-       xw.attrs.event_mask = FocusChangeMask | KeyPressMask
+       xw.attrs.event_mask = FocusChangeMask | KeyPressMask | KeyReleaseMask
                | ExposureMask | VisibilityChangeMask | StructureNotifyMask
                | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
        xw.attrs.colormap = xw.cmap;
@@ -1061,22 +1131,7 @@ xinit(int cols, int rows)
        xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
 
        /* input methods */
-       if ((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
-               XSetLocaleModifiers("@im=local");
-               if ((xw.xim =  XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
-                       XSetLocaleModifiers("@im=");
-                       if ((xw.xim = XOpenIM(xw.dpy,
-                                       NULL, NULL, NULL)) == NULL) {
-                               die("XOpenIM failed. Could not open input"
-                                       " device.\n");
-                       }
-               }
-       }
-       xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
-                                          | XIMStatusNothing, XNClientWindow, xw.win,
-                                          XNFocusWindow, xw.win, NULL);
-       if (xw.xic == NULL)
-               die("XCreateIC failed. Could not obtain input method.\n");
+       ximopen(xw.dpy);
 
        /* white cursor, black outline */
        cursor = XCreateFontCursor(xw.dpy, mouseshape);
@@ -1107,8 +1162,8 @@ xinit(int cols, int rows)
 
        win.mode = MODE_NUMLOCK;
        resettitle();
-       XMapWindow(xw.dpy, xw.win);
        xhints();
+       XMapWindow(xw.dpy, xw.win);
        XSync(xw.dpy, False);
 
        clock_gettime(CLOCK_MONOTONIC, &xsel.tclick1);
@@ -1218,13 +1273,10 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
                        fontpattern = FcFontSetMatch(0, fcsets, 1,
                                        fcpattern, &fcres);
 
-                       /*
-                        * Overwrite or create the new cache entry.
-                        */
-                       if (frclen >= LEN(frc)) {
-                               frclen = LEN(frc) - 1;
-                               XftFontClose(xw.dpy, frc[frclen].font);
-                               frc[frclen].unicodep = 0;
+                       /* Allocate memory for the new cache entry. */
+                       if (frclen >= frccap) {
+                               frccap += 16;
+                               frc = xrealloc(frc, frccap * sizeof(Fontcache));
                        }
 
                        frc[frclen].font = XftFontOpenPattern(xw.dpy,
@@ -1404,7 +1456,6 @@ void
 xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
 {
        Color drawcol;
-       uint32_t cc;
 
        /* remove the old cursor */
        if (selected(ox, oy))
@@ -1419,29 +1470,25 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
         */
        g.mode &= ATTR_BOLD|ATTR_ITALIC|ATTR_UNDERLINE|ATTR_STRUCK|ATTR_WIDE;
 
-       if (selected(cx, cy)) {
-               cc = g.bg;
-       } else {
+       if (IS_SET(MODE_REVERSE)) {
                g.mode |= ATTR_REVERSE;
-               if (g.mode & ATTR_BOLD && BETWEEN(g.fg, 0, 7))
-                       cc = g.fg + 8;
-               else
-                       cc = g.fg;
-       }
-
-       if (IS_TRUECOL(cc)) {
-               drawcol.color.alpha = 0xffff;
-               drawcol.color.red = TRUERED(cc);
-               drawcol.color.green = TRUEGREEN(cc);
-               drawcol.color.blue = TRUEBLUE(cc);
+               g.bg = defaultfg;
+               if (selected(cx, cy)) {
+                       drawcol = dc.col[defaultcs];
+                       g.fg = defaultrcs;
+               } else {
+                       drawcol = dc.col[defaultrcs];
+                       g.fg = defaultcs;
+               }
        } else {
-               drawcol = dc.col[cc];
-       }
-
-       if (IS_SET(MODE_REVERSE)) {
-               drawcol.color.red = ~drawcol.color.red;
-               drawcol.color.green = ~drawcol.color.green;
-               drawcol.color.blue = ~drawcol.color.blue;
+               if (selected(cx, cy)) {
+                       g.fg = defaultfg;
+                       g.bg = defaultrcs;
+               } else {
+                       g.fg = defaultbg;
+                       g.bg = defaultcs;
+               }
+               drawcol = dc.col[g.bg];
        }
 
        /* draw the new one */
@@ -1559,6 +1606,18 @@ xfinishdraw(void)
                                defaultfg : defaultbg].pixel);
 }
 
+void
+xximspot(int x, int y)
+{
+       if (xw.ime.xic == NULL)
+               return;
+
+       xw.ime.spot.x = borderpx + x * win.cw;
+       xw.ime.spot.y = borderpx + (y + 1) * win.ch;
+
+       XSetICValues(xw.ime.xic, XNPreeditAttributes, xw.ime.spotlist, NULL);
+}
+
 void
 expose(XEvent *ev)
 {
@@ -1633,13 +1692,13 @@ focus(XEvent *ev)
                return;
 
        if (ev->type == FocusIn) {
-               XSetICFocus(xw.xic);
+               XSetICFocus(xw.ime.xic);
                win.mode |= MODE_FOCUSED;
                xseturgency(0);
                if (IS_SET(MODE_FOCUS))
                        ttywrite("\033[I", 3, 0);
        } else {
-               XUnsetICFocus(xw.xic);
+               XUnsetICFocus(xw.ime.xic);
                win.mode &= ~MODE_FOCUSED;
                if (IS_SET(MODE_FOCUS))
                        ttywrite("\033[O", 3, 0);
@@ -1694,7 +1753,7 @@ kpress(XEvent *ev)
 {
        XKeyEvent *e = &ev->xkey;
        KeySym ksym;
-       char buf[32], *customkey;
+       char buf[64], *customkey;
        int len;
        Rune c;
        Status status;
@@ -1703,7 +1762,7 @@ kpress(XEvent *ev)
        if (IS_SET(MODE_KBDLOCK))
                return;
 
-       len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status);
+       len = XmbLookupString(xw.ime.xic, e, buf, sizeof buf, &ksym, &status);
        /* 1. shortcuts */
        for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
                if (ksym == bp->keysym && match(bp->mod, e->state)) {
@@ -1736,7 +1795,6 @@ kpress(XEvent *ev)
        ttywrite(buf, len, 1);
 }
 
-
 void
 cmessage(XEvent *e)
 {